Hi guys.. I'd like to setup intervlan routing on my network. I have the choice of using a Cisco 1941 router or a Cisco 3750G Layer 3 Switch. I believe they can both accomplish this task, however I would like to know which is preferable from a performance standpoint. Also are there any extra practical features that I could benefit from by using either one of them?

3750G is miles ahead of a 1941 in terms of performance! You would only use the router for inter VLAN routing if you didn't have a multilayer switch.
Routers have more features, including NAT, VPN and inspection policies. Usually not required for inter VLAN routing.

5 Replies

3750G is miles ahead of a 1941 in terms of performance! You would only use the router for inter VLAN routing if you didn't have a multilayer switch.
Routers have more features, including NAT, VPN and inspection policies. Usually not required for inter VLAN routing.

I agree with Nitroz. Think of it this way, to intervlan route on the 1941 you have to contend for bandwidth on its gigE ports, and it means the frame has to make a special trip over to the 1941 just to switch from vlan1 to vlan2. If a frame comes into the 3750 and its destined for another vlan, the switch will send it to the correct vlan without the frame ever having to leave. And the switch has waaaaaaay more available bandwidth on its backplane than the single measly gig port on the 1941.